Dreame X40 Ultra
Rank 27 of 53 robots with an all-in-one station in our ranking, tested by Vacuum Wars.in our ranking, tested by Vacuum Wars
Score 6.8 out of 10
Lab tests, 60% of the score: 6.3, measured by Vacuum Wars.
Owners’ ratings, 25%: none yet at the shops that deliver to the Netherlands, so this part is left out and the others count for more.
Features, 15%: 8.5, 76 of the 89 points for the facts the maker states.
Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked.
The highest score today is 7.9.
Is the Dreame X40 Ultra right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, a model with the same kind of station that scores about the same for at least 25% less, and one that scores clearly higher for at most 20% more, where we find them on sale today.
Green is the best of these 3, also when they share the lead.
| This model Dreame X40 Ultra Best on 2 facts | Nearly as good, 57% cheaper Roborock QV 35A Best on 2 facts | Much better, not dearer Narwal Flow Best on 7 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | € 679bol.com | € 289Roborock (brand store) best | € 621 *Amazon.fr |
| Score | best | ||
| Rank | rank 27 of 53 with an all-in-one station | rank 29 of 53 with an all-in-one station | rank 2 of 53 with an all-in-one station |
| Customer rating | – | ★ 4.5 · 5,710 reviews best | ★ 4.0 · 290 reviews |
| Mopping | |||
| Mop type | spinning pads | spinning pads | roller mop |
| Mop lift on carpet higher is better | 10.5 mm | 10 mm | 12 mm best |
| Automatic mop detach | yes (best) | no | no |
| Washes the mop same on all | yes | yes | yes |
| Hot-air drying | yes (best) | no | yes (best) |
| Station | |||
| Station same on all | all-in-one station | all-in-one station | all-in-one station |
| Dust bag lasts longer is better | up to 75 days | up to 30 days | up to 120 days best |
| Plumbing hookup | no | no | – |
| Brush and obstacles | |||
| Anti-tangle brush | – | yes | yes |
| Obstacle avoidance | AI camera | 3D sensor (structured light) | AI camera |
| Climbs thresholds up to higher is better | 22 mm | 20 mm | 30 mm best |
| Climbing system for high thresholds | – | no | yes (best) |
| Size, noise and age | |||
| Robot height lower is better | 9.7 cm | 9.7 cm | 9.5 cm best |
| Noise not judged | – | 65 dB | – |
| On the market since | April 2024 | January 2025 | August 2025 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews. * Foreign shop: delivery cost and VAT to the Netherlands estimated.
Prices per shop
On 3 October 2026 the lowest price for the Dreame X40 Ultra is € 679 at bol.com, delivery to the Netherlands included. In our ranking it is rank 27 of 53 with an all-in-one station, with a score of 6.8 out of 10.
All prices include VAT and delivery to the Netherlands. We may earn a commission when you buy through these links. It never changes our ranking.
| Shop | Colour | Price | Delivery time and returns | Reviews | Checked | Link to the shop |
|---|---|---|---|---|---|---|
 bol.com whitelowest price NL sold by a third-party seller Dutch shopReviews on Trustpilot ↗ | white | € 679 | 3 dayslowest price NLreturns through the seller | – | 23 hours ago | Visit shop ↗ |
* Foreign price: delivery cost and VAT to the Netherlands estimated. Prices are checked daily. A shop reporting no price shows "–". Let your browser translate it.
Price history
What the tests like and dislike about the Dreame X40 Ultra
Pros
- Pulled deeply embedded sand from carpet far better than most robots Vacuum Wars ↗
- Spinning mops lifted dried coffee and juice stains very well Vacuum Wars ↗
- Avoided the test obstacles almost without fault Vacuum Wars ↗
- Spotted cables, shoes and pet mess and kept well clear of them TechRadar ↗
- Scrubbed away dried sauce and sticky honey within a few passes TechRadar ↗
- Extending brush and mop reach into corners and along cabinet edges TechRadar ↗
Cons
- Long hair still tends to tangle around the main brush Vacuum Wars ↗
- One of the priciest robots the testers had evaluated at the time Vacuum Wars ↗
- Weak dock suction sometimes left the bin full and clogged the bag TechRadar ↗
- App buries common settings deep in menus and can lag TechRadar ↗
- Dust bags fill early, which pushes up running costs TechRadar ↗
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarise RTINGS or Wirecutter: their lists are linked above.
Dreame X40 Ultra specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Dreame · on the market since April 2024
Consumables: a 3.2 l dust bag in the station, which lasts up to 75 days.
Dimensionsrobot and dock
From the published dimensions. The dock needs a spot 46 cm wide and 34 cm deep.
Suction and brushes 3 facts
- Suction power
Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.
- 12,000 Pa
- Extending side brush
The side brush swings out in a corner or along a kickboard, so the dust there is swept in too.
- yes
- Dirt detection
A sensor notices where more dirt lies, at the doormat for example, and the robot cleans that patch longer or a second time.
- yes
Mopping 4 facts
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- spinning pads
- Mop lift on carpet
How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry.
- 10.5 mm
- Mop extends to the edges
The pad slides out along a wall or a kickboard, so the last few centimetres are mopped as well.
- yes
- Automatic mop detach
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet.
- yes
Dock 13 facts
- Empties the dust bin
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
- yes
- Bagless
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.
- no
- Dust bag capacity
How much the dust bag in the dock holds.
- 3.2 l
- Dust bag lasts
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.
- up to 75 days
- Washes the mop
The dock washes the mop for you, so you do not rinse it by hand.
- yes
- Wash temperature
How hot the dock washes the mop. Above 60 °C grease comes off, which is what keeps a mop from smelling.
- 70 °C
- Dries the mop
The dock dries the mop afterwards, so it does not sit there wet and start to smell.
- yes
- Hot-air drying
Drying is done with warm air instead of cold. It is faster and it helps against smell.
- yes
- Dispenses detergent
The dock mixes detergent into the water itself, from its own bottle.
- yes
- Plumbing hookup
The dock can be connected to the tap and the drain, so you never fill or empty a tank. It does need a connection nearby.
- no
- Clean water tank
The clean water tank in the dock, which wets the mop.
- 4.5 l
- Dirty water tank
The tank that catches the dirty water from the mop. You empty this one yourself.
- 4 l
- Dock size (w × d × h)
The width, depth and height of the dock. Measure the spot you have in mind, and leave room for the lid and for the robot driving in.
- 45.7 × 34 × 59.1 cm
Navigation and obstacles 4 facts
- Navigation
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognises more.
- LiDAR turret
- Obstacle avoidance
How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact.
- AI camera
- Climbs thresholds up to
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 22 mm
- Camera on board
Whether the robot has a camera, and what for: to recognise obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 2 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 9.7 cm
- Dust bin in the robot
How much dust the robot holds before you empty it. It matters less with an auto-empty dock, which empties the bin after every run.
- 300 ml
Battery 2 facts
- Battery capacity
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 6,400 mAh
- Runtime per charge
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 194 min
Smart features and warranty 1 fact
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant, Siri
Sources: dreametech.com · vacuumwars.com · dreame.sg · amazon.com
Our score
Confidence: medium. One lab and fewer than 300 owners’ ratings. The highest score today is 7.9.
-
Lab tests 60%6.3
5 cleaning abilities measured, on one scale for every robot.
- Deep clean on carpet6.0
- Pet hair7.7
- Mopping4.9
- Obstacle avoidance6.7
- Navigation6.4
Measured by Vacuum Wars (read on 29 September 2026).
-
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the shops that deliver to the Netherlands, so this part is left out and the others count for more.
-
Features 15%8.5
76 of 89 points for the facts the maker states.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No test, no rankOnly robots a lab has tested are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
The testers’ picks
- Vacuum Wars · Position 65 of 15126 September 2026
Positions and labels, never text. These picks are shown beside the score and do not count in it. How the score comes about is on the method page.
Frequently asked questions about the Dreame X40 Ultra
Does the Dreame X40 Ultra empty its own dust bin?
Yes. The station empties the robot’s dust bin after every run. The 3.2 l dust bag in the station lasts up to 75 days, the maker says.
Does the Dreame X40 Ultra wash and dry its own mop?
Yes. The station washes the mop itself, with water at 70 °C. It then dries the mop with warm air.
Does the Dreame X40 Ultra work with Alexa, Google Home or Siri?
It works with Alexa, Google Assistant and Siri.
How high a threshold can the Dreame X40 Ultra climb?
Thresholds up to 22 mm, the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Dreame X40 Ultra fit under low furniture?
The robot is 9.7 cm tall, so it fits under furniture with at least 10 cm of clearance.
How long does the Dreame X40 Ultra run on one charge?
194 minutes on its quietest setting.
